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Method for Selecting Rotor Suspension Design Criteria...

by Brian Damiano
Publication Type
Conference Paper
Book Title
Rotating Machinery, Optical Methods & Scanning LDV Methods, Volume 6: Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics, 2020
Publication Date
Page Numbers
131 to 138
Publisher Location
New York, New York, United States of America
Conference Name
38th International Modal Analysis Conference (IMAC)
Conference Location
Houston, Texas, United States of America
Conference Sponsor
Society for Experimental Mechanics
Conference Date
A method for selecting rotor suspension design criteria that allow rotors with internal friction to negotiate critical speeds and avoid subsynchronous internal friction instabilities is described. A rotor model of a test rotor with internal friction is created and used to calculate the test rotor’s critical speeds, mode shapes, Campbell plots, and the rotational speed corresponding to the stability boundary for a nominal set of suspension parameters. The test rotor model is then used to demonstrate the suspension design criteria selection method.